PS1 CFA 2 Review

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What is an independent variable?

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An independent variable is the factor that is changed or controlled in an experiment to test its effects on the dependent variable.

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What is a dependent variable?

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A dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

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What is a hypothesis?

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A hypothesis is a proposed explanation or prediction that can be tested through experimentation.

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What are constants in an experiment?

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Constants are the factors that remain the same throughout an experiment to ensure that the results are valid.

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What is an experimental group?

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An experimental group is the group in an experiment that receives the treatment or condition being tested.

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What is a control group?

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A control group is the group in an experiment that does not receive the treatment and is used as a benchmark to measure how the other groups do.

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Why is it important to have a control group in an experiment?

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A control group is important because it allows for comparison against the experimental group, helping to isolate the effects of the independent variable.

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What is the purpose of conducting an experiment?

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The purpose of conducting an experiment is to test a hypothesis and gather data to support or refute it.

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What is the scientific method?

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The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

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What is the role of observation in scientific experiments?

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Observation is crucial in scientific experiments as it helps in gathering data and forming conclusions based on evidence.